HK Instruments CDT2000 Installation guide

INSTALLATION

INSTRUCTIONS

CARBON DIOXIDE TRANSMITTERS

CDT2000 Duct Series

• READ THESE INSTRUCTIONS CAREFULLY BEFORE

ATTEMPTING TO INSTALL, OPERATE OR SERVICE THIS

DEVICE.

• Failuretoobservesafetyinformaonandcomplywith

instruconscanresultinPERSONALINJURY,DEATHAND/OR

PROPERTY DAMAGE.

• Toavoidelectricalshockordamagetoequipment,disconnect

powerbeforeinstallingorservicinganduseonlywiringwith

insulaonratedforfulldeviceoperangvoltage.

• Toavoidpotenalreand/orexplosiondonotuseinpotenally

ammableorexplosiveatmospheres.

• Retaintheseinstruconsforfuturereference.

• Thisproduct,wheninstalled,willbepartofanengineered

systemwhosespecicaonsandperformancecharacteriscs

arenotdesignedorcontrolledbyHKInstruments.Review

applicaonsandnaonalandlocalcodestoassurethatthe

installaonwillbefunconalandsafe.Useonlyexperiencedand

knowledgeabletechnicianstoinstallthisdevice.

SPECIFICATIONS

Thank you for choosinganHKInstruments CDT2000 Ductseries

carbon dioxide transmier. The CDT2000 Duct series is intended

foruseincommercialenvironmentsinHVAC/Rapplicaons.

TheCDT2000Ductseriesmeasurescarbondioxide(CO2),ulizing

theindustrystandardNDIRmeasurementprinciple,andtempera-

ture(T).Illuminateddisplayensureseasyreadabilityalsofromadis-

tance.TheCDT2000Ducthasascrewlesslidandaneasilyadjust-

ablemounngangethatmaketheinstallaonofthedeviceeasy.

TheCDT2000 Duct series transmierscalibratethemselves auto-

macallyusingABCTMlogic.TheABCTMlogicrequiresthatthespace

inwhichthetransmierisusedneedstotobeunoccupiedforfour

hours per day so that the indoor CO2 concentraon drops to the

outside level. CDT2000-DC Duct is a dual channel model with a

measuringchannelandareferencechannelthatmakesaconnuous

comparisonandthenecessaryadjustmentaccordingly.CDT2000-

DCDuctisalsosuitableforbuildingsthatareconnuouslyoccupied.

CDT2000Ductseriesdevicesarecommonlyusedtomonitor:

• CO2levelsofincomingandreturnairinvenlaonsystem

•CDT2000-DCDuctseriesdevicescanalsobeusedinapplicaons

wherethereisaconstantsourceofcarbondioxidepresent(for

examplehospitalsandgreenhouses)

SPECIFICATIONS

Performance

Measurement ranges:

CO2:400–2000ppm

Temperature:0...50°C

Accuracy:

CO2:±40ppm+3%ofreading,DCmodel:75ppmor

10%ofreading(whicheverisgreater)

Temperature:<0.5ºC

Technical Specicaons

Media compability:

Dryairornon-aggressivegases

Measuring units:

ppmand°C

Measuring element:

CO2:Non-dispersiveinfrared(NDIR)

Temperature:NTC10k

Calibraon:

Automacself-calibraonABCLogicTMorconnuous

comparison(DC)

Environment:

Operangtemperature:0...50°C

Storagetemperature:-20...70°C

Humidity:0to95%rH,noncondensing

Physical

Dimensions:

Case:119x95.5x45mm

Probe:L=186mm,d=12mm

Mounng:

Withange,adjustable40...155mm

Weight:

150g

Materials:

Case:ABS

Cover:PC

Probe:ABS

Protecon standard:

IP54

Electrical connecons:

4springloadedterminals

(24V,GND,CO2, T)

0.2–1.5mm2(16–24AWG)

A-model:

6springloadedterminals

(24V,GND,Voltage_CO2,Voltage_T,

mA_CO2,mA_T)

0.2-1.5mm2(16-24AWG)

Electrical

Supplyvoltage:24VACorVDC±10%

Currentconsumpon:max230mA(at24V)+35mA

foreachvoltageoutput

Outputsignals

0/2...5/10VDC,LoadRminimum1kΩ

OnlyA-model:

4...20mA,LoadRmaximum500Ω,minimum20Ω

Outputcalibratedwithin±0.08mA

Conformance

Meetsrequirementsfor:

  CE:  UKCA:

EMC:  2014/30/EU S.I.2016/1091

RoHS:  2011/65/EU S.I.2012/3032

WEEE:  2012/19/EU S.I.2013/3113

INTRODUCTION

APPLICATIONS

WARNING

RoHS

COMPLIANT

Schematics

dimensional drawings

INSTALLATION

STEP 1: MOUNTING THE DEVICE

1)Mountthedeviceinthedesiredlocaon(seestep1).

2)Routethecablesandconnectthewires(seestep2).

3)Thedeviceisnowreadyforconguraon.

WARNING!Applypoweronlyaerthedeviceisproperlywired.

1)Selectthemounnglocaon(onaduct).

2)Usethemounngangeofthedeviceasatemplateandmarkthe

screwholes.

3)Mounttheangeontheductwithscrews(notincluded).(Figure1a)

4)Adjusttheprobetothedesireddepth.Ensurethattheendofthe

probereachesthemiddleoftheduct.(Figure1b)

5)Tightenthescrewontheangetoholdtheprobeinposion.

119.0

95.5

119.0

45.0

88.5

186.0

Figure 1a - Mounng a ange

Figure 1b - Mounng the probe in a ange

Air ﬂow direcon Air ﬂow direcon

Air ﬂow direcon Air ﬂow direcon Air ﬂow direcon

Strain relief facing down

Figure 1c - Mounng orientaon

Display connecon

24 V

GND

Joysck 1

Joysck 2

Joysck 3

Select

Down

Menu buons CO2/RH

mA Out (oponal)

CO2/RH

Tighten the

screw

STEP 3: CONFIGURATION

ConguraonoftheCDT2000Ductseriesdeviceconsistsof:

Conguraonmenuopons.(Displayversionsonly.)

Presstheselectbuontoacceptchanges.Movetothenextset-

ngbypressingthedownbuon.

1)AcvatethedeviceMenubypushingtheselectbuonfor2

seconds.

ForCEcomplianceaproperlygroundedshieldingcableis

required.

1)Unscrewthestrainreliefandroutethecable(s).

2)Connectthewiresasshowningure2a.

3)Tightenthestrainrelief.

CO2

24 V

GND

+ Power Supply

24VDC / 24VAC

Output 0/2...5/10 V

CO2

Output 4...20 mA

Output 4...20 mA Oponal mA output

3)SelecttheCO2highlimitforoutputband:500...2000ppm.

CO2 OUT MAX

2000 CO

2 ppm

SELECT

DOWN

4)Selectthetemperaturelowlimitforoutputband:0...45.0°Cor

32...112°F.

TE OUT MIN

0.0 °C

SELECT

DOWN

5)Selectthetemperaturehighlimitforoutputband:5...50.0°C

or42...122°F.

6)Selecttheoutputmaximumvoltage:5V/10V.

NOTE!WhenusingmAoutputs,10Vmustbeselected.

TE OUT MAX

50.0 °C

SELECT

DOWN

MAX OUTPUT V

10 V

SELECT

DOWN

7)Selecttheoutputminimumvoltage:0V/2V.

NOTE!WhenusingmAoutputs,0Vmustbeselected.

MIN OUTPUT V

0 V

SELECT

DOWN

STEP 2: WIRING DIAGRAMS

NOTE!Whenusinglongconneconwiresitmaybenecessarytousea

separateGNDwireforvoltageoutputcurrenttopreventmeasurement

distoron.TheneedforanextraGNDwiredependsonthecrosssec-

onandlengthoftheusedconneconwires.Iflongand/orsmallcross

seconwiresareused,supplycurrentandwireresistancemaygener-

ate avoltage drop in the common GND wire resulng ina distorted

outputmeasurement.

CO2

24 V

GND

+Power Supply

24VDC / 24VAC

Output 0/2...5/10 V

Figure 2a - Wiring diagram

Figure 2b - Wiring diagram: Extra GND wire

CONFIGURATION CONTINUED

10)Pushtheselectbuontoexitmenu.

SELECT

EXIT MENU SELECT

8)SelectCO2oset:±200CO2ppm,Osetfeatureenables

eldcalibraon.Thisisnecessaryindemandingapplicaons

requiringannualcalibraon.

CO2 OFFSET

0 CO

2ppm

SELECT

DOWN

9)Selecttemperatureoset:±5°Cor±9°F

TE OFFSET

0.0 °C

SELECT

DOWN

CO2 OUT MIN

400 CO

2 ppm

SELECT

DOWN

2)SelecttheCO2lowlimitforoutputband:0...1900ppm.

WARRANTY POLICY

Thesellerisobligatedtoprovideawarrantyofveyearsforthedeliv-

eredgoodsregardingmaterialandmanufacturing.Thewarrantyperiod

isconsideredtostartonthedeliverydateoftheproduct.Ifadefect

inrawmaterialsoraproduconawisfound,thesellerisobligated,

whentheproductissenttothesellerwithoutdelayorbeforeexpira-

onofthewarranty,toamendthemistakeathis/herdiscreoneither

by repairing the defecve product or by delivering free of charge to

thebuyeranewawlessproductandsendingittothebuyer.Delivery

costsfortherepairunderwarrantywillbepaidbythebuyerandthe

return costs by the seller. The warranty does not comprise damages

causedbyaccident,lightning,oodorothernaturalphenomenon,nor-

malwearandtear,improperorcarelesshandling,abnormaluse,over-

loading,improperstorage,incorrectcareorreconstrucon,orchanges

and installaonworknotdoneby theseller.Theseleconofmateri-

alsfordevicespronetocorrosionisthebuyer’sresponsibility,unless

otherwise is legally agreed upon. Should the manufacturer alter the

structureofthedevice,thesellerisnotobligatedtomakecomparable

changestodevicesalreadypurchased.Appealingforwarrantyrequires

thatthebuyerhascorrectlyfullledhis/herduesarisenfromthede-

liveryandstatedinthecontract.Thesellerwillgiveanewwarrantyfor

goodsthathavebeenreplacedorrepairedwithinthewarranty,how-

everonlytotheexpiraonoftheoriginalproduct’swarrantyme.The

warrantyincludestherepairofadefecvepartordevice,orifneeded,

anewpartordevice,butnotinstallaonorexchangecosts.Underno

circumstanceisthesellerliablefordamagescompensaonforindirect

damage.

RECYCLING/DISPOSAL

The parts le over from installaon should be

recycled according to your local instrucons.

Decommissioned devices should be taken to a

recyclingsitethatspecializesinelectronicwaste.

HK Instruments CDT2000 Installation guide

Related papers

Other documents